O-fuda(御札 or お札,o-fuda?, a charm) is a type of household amulet or talisman, issued by a Shinto shrine, hung in the house for protection, a gofu(護符?). It may also be called shinpu(神符?). It is made by inscribing the name of a kami and the name of the Shinto shrine or of a representative of the kami on a strip of paper, wood, cloth, or metal.

It is to be renewed yearly, typically before the end of a year, and attached to a door, pillar, or ceiling. It may also be placed inside a private shrine (kamidana). It is believed to protect the family in residence from general harm, such as a disease. A more specific o-fuda may be placed near particular objects such as one for kitchen to protect from accidental fire. A popular o-fuda called jingū-taima (神宮大麻) or simply taima (大麻) is issued by Ise Shrine. It is made from hemp cloth; the use of hemp as a material was common from antiquity.

A portable form of o-fuda, commonly called omamori (お守り or 御守, o-mamori) is typically given out wrapped in a small bag made of decorated cloth. This originates from Onmyōdō and Buddhism, but was subsequently adopted by Shinto. Both Buddhist temples and Shinto shrines give out these o-mamori. While an o-fuda is said to protect a whole family, an o-mamori offers support for personal benefits.